Code:
17:07:41.031 [system.io] [trace] exists: 2526: caching directory: mods/hyrule/data/siege_engines/bonemaps
17:07:41.031 [system.io] [trace] exists: 12900: caching file: mods/hyrule/data/siege_engines/bonemaps/bombard.xml (1296951953)
17:07:41.031 [system.io] [trace] exists: 12901: caching file: mods/hyrule/data/siege_engines/bonemaps/bombard_die.xml (1296951953)
17:07:41.031 [system.io] [trace] exists: 12902: caching file: mods/hyrule/data/siege_engines/bonemaps/magecannon.xml (1296951953)
17:07:41.031 [system.io] [trace] exists: 12903: caching file: mods/hyrule/data/siege_engines/bonemaps/magecannon_die.xml (1296951953)
17:07:41.031 [system.io] [trace] exists: 12904: caching file: mods/hyrule/data/siege_engines/bonemaps/ram_v2.xml (1206605274)
17:07:41.031 [system.io] [trace] exists: 12905: caching file: mods/hyrule/data/siege_engines/bonemaps/ram_v2_destroy.xml (1206605274)
17:07:41.031 [system.io] [info] exists: found mods/Hyrule/data/siege_engines/BoneMaps/bombard.xml (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [trace] file open,,mods/Hyrule/data/siege_engines/BoneMaps/bombard.xml,261
17:07:41.031 [system.io] [info] open: found mods/Hyrule/data/siege_engines/BoneMaps/bombard.xml (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [info] exists: found mods/Hyrule/data/siege_engines/siege_magecannon_lod0.mesh (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [trace] file open,,mods/hyrule/data/siege_engines/siege_magecannon_lod0.mesh,269790
17:07:41.031 [system.io] [info] open: found mods/hyrule/data/siege_engines/siege_magecannon_lod0.mesh (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [trace] exists: 2527: caching directory: mods/hyrule/data/unit_models/_units/zora/textures/variations/middle_eastern
17:07:41.031 [system.io] [info] exists: directory non-existant: mods/hyrule/data/unit_models/_units/zora/textures/variations/middle_eastern
17:07:41.031 [system.io] [info] exists: missing mods/Hyrule/data/unit_models/_Units/zora/textures/variations/middle_eastern/zor_main1.texture
17:07:41.031 [system.io] [trace] exists: 2528: caching directory: data/unit_models/_units/zora/textures/variations/middle_eastern
17:07:41.031 [system.io] [info] exists: directory non-existant: data/unit_models/_units/zora/textures/variations/middle_eastern
17:07:41.031 [system.io] [info] exists: missing data/unit_models/_Units/zora/textures/variations/middle_eastern/zor_main1.texture
17:07:41.031 [system.io] [trace] exists: 2529: caching directory: mods/hyrule/data/unit_models/_units/zora/textures
17:07:41.031 [system.io] [trace] exists: 12906: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_bigtocto1.texture (1301607336)
17:07:41.031 [system.io] [trace] exists: 12907: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_bigtocto1_normal.texture (1301609096)
17:07:41.031 [system.io] [trace] exists: 12908: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_main1.texture (1302210116)
17:07:41.031 [system.io] [trace] exists: 12909: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_main1_normal.texture (1302210116)
17:07:41.031 [system.io] [trace] exists: 12910: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_main2.texture (1302163376)
17:07:41.031 [system.io] [trace] exists: 12911: caching file: mods/hyrule/data/unit_models/_units/zora/textures/zor_main2_normal.texture (1302163376)
17:07:41.031 [system.io] [info] exists: found mods/Hyrule/data/unit_models/_Units/zora/textures/zor_main1.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [info] exists: found mods/Hyrule/data/unit_models/_Units/zora/textures/zor_main1.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.031 [system.io] [info] exists: missing mods/Hyrule/data/unit_models/_Units/zora/textures/variations/middle_eastern/zor_main1_normal.texture
17:07:41.031 [system.io] [info] exists: missing data/unit_models/_Units/zora/textures/variations/middle_eastern/zor_main1_normal.texture
17:07:41.046 [system.io] [info] exists: found mods/Hyrule/data/unit_models/_Units/zora/textures/zor_main1_normal.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.046 [system.io] [info] exists: found mods/Hyrule/data/unit_models/_Units/zora/textures/zor_main1_normal.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.046 [system.io] [trace] exists: 2530: caching directory: mods/hyrule/data/siege_engines/textures/variations/middle_eastern
17:07:41.046 [system.io] [info] exists: directory non-existant: mods/hyrule/data/siege_engines/textures/variations/middle_eastern
17:07:41.046 [system.io] [info] exists: missing mods/Hyrule/data/siege_engines/textures/variations/middle_eastern/siege_engine_overlay.texture
17:07:41.046 [system.io] [trace] exists: 2531: caching directory: data/siege_engines/textures/variations/middle_eastern
17:07:41.046 [system.io] [info] exists: directory non-existant: data/siege_engines/textures/variations/middle_eastern
17:07:41.046 [system.io] [info] exists: missing data/siege_engines/textures/variations/middle_eastern/siege_engine_overlay.texture
17:07:41.046 [system.io] [trace] exists: 2532: caching directory: mods/hyrule/data/siege_engines/textures
17:07:41.046 [system.io] [trace] exists: 12912: caching file: mods/hyrule/data/siege_engines/textures/siege_engine_overlay.texture (1296951958)
17:07:41.046 [system.io] [trace] exists: 12913: caching file: mods/hyrule/data/siege_engines/textures/siege_new_ram.texture (1206605274)
17:07:41.046 [system.io] [trace] exists: 12914: caching file: mods/hyrule/data/siege_engines/textures/siege_new_ram_normal.texture (1206605274)
17:07:41.046 [system.io] [trace] exists: 12915: caching file: mods/hyrule/data/siege_engines/textures/siege_new_ram_overlay.texture (1206605274)
17:07:41.046 [system.io] [info] exists: found mods/Hyrule/data/siege_engines/textures/siege_engine_overlay.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.046 [system.io] [info] exists: found mods/Hyrule/data/siege_engines/textures/siege_engine_overlay.texture (from: C:\Program Files\Sega\Medieval II Total War)
17:07:41.656 [system.rpt] [error] Uh oh. This isn't good. No idea why, but exiting now. Sorry pal.
I think the problem might be GOAT not converting the model with the proper joints. I tried converting the mesh back to ms3d and the skeleton is not that of the bombard cannon, it's a humanoid with missing joints and the comments missing in the materials.